Not sure what is wrong with my code, but every time I get a right answer the prompt just stops.

//2 dimensional array for questions
var questions = [ 
    ["How many stated are in the US?", 50],
    ["How many continents are there?", 7],
    ["How many legs does an insect have?", 6]
];

var correctAnswers = 0;
var question;
var answer;
var response;
var html;

var corrent = []
var wrong = []


function print(message) {
  document.write(message);
}


function buildList(arr){
  var listHTML = '<ol>';
  for (var i = 0; i < arr.length; i += 1) {
    listHTML += '<li>' + arr[i] + '</li>';
  }
  listHTML += '<ol>';
  return listHTML
}

for( var i = 0; i < questions.length; i += 1) {
  question = questions[i][0];
  answer = questions[i][1];
  response = prompt(question);
  response = parseInt(response);
  if (response === answer) {
    correctAnswers += 1;
    correct.push(question);
  } else {
      wrong.push(question);
  }
}

html = "You got " + correctAnswers + " question(s) right.";
html += '<h2>You go these questions corrent</h2>';
html += buildList(corrent);
html += '<h2>You go these questions wrong</h2>';
html += buildList(wrong);           
print(html);